Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Éric Gillet
2015-07-02 16:31 GMT+02:00 Roger Slevin : > Eric > > > > I think you are falling into the trap of trying to cover too many things > in one relationship. > It seems like your email client did not display the quote properly. The only thing I said in the first paragraph is : "Aggregate data to reduc

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Roger Slevin
Eric I think you are falling into the trap of trying to cover too many things in one relationship. A stoparea to me as a public transport person is (defined functionally) a cluster of stoppoints at which it is possible to interchange between services – and as such it is also a collection of

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Jo
Scenario: I have data from 'upstream'. This data relates to public_transport=platform nodes next to the way What I need now, is to figure out which nearby way 'belongs' to this 'platform'. If there is a stop_area relation, this is easy (as long as there is a stop_area relation which contains a p

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Éric Gillet
2015-07-02 15:52 GMT+02:00 Janko Mihelić : > If you are adding stop_areas, then there certainly have to be two of them, > one on each side. One of them is put in the route that goes one way, the > other one is put in the other way. I'm also pretty sure that the > stop_area_group is not needed. If

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Shaun McDonald
In the UK, the NaPTAN standard uses a stop area to group stops together, such that you have one stop in each direction within the same stop area, or a whole bus station within a stop area. Shaun > On 2 Jul 2015, at 14:52, Janko Mihelić wrote: > > If you are adding stop_areas, then there certa

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Éric Gillet
2015-07-02 14:21 GMT+02:00 Nounours77 : > I think Jo is right to rise this problem. It is unclear which > stop/platform belongs to which direction of the route. Often you can decude > it from proximity, or from the side. > But I've seen quite some examples, where only the stop_positions are > mapp

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Janko Mihelić
If you are adding stop_areas, then there certainly have to be two of them, one on each side. One of them is put in the route that goes one way, the other one is put in the other way. I'm also pretty sure that the stop_area_group is not needed. If they are near each other, then it's a group. But to

Re: [Talk-transit] different interpretations of v2 PT scheme

2015-07-02 Thread Nounours77
I think Jo is right to rise this problem. It is unclear which stop/platform belongs to which direction of the route. Often you can decude it from proximity, or from the side. But I've seen quite some examples, where only the stop_positions are mapped, and if they are quite distant, you have no w